Math 3322-001
Exam I-A
September 7, 2007
Answer the problems on separate paper. You do not need to rewrite the problem statements on your
answer sheets. Do your own work. Show all relevant steps which lead to your solutions. Attach this
question sheet to the front of your answer sheets.
1. (32 pts) For each of the following functions find
a.
y = 4 x3 − x
dy
:
dx
y = sin 4 ( x − x 2 )
b.
Supp #1, Pr 14
c.
Supp #1, Pr 40
y = x 1− 2x
y=
d.
Supp #1, Pr 11
Supp #1, Pr 9
2. (8 pts) Find, using implicit differentiation,
a.
x
1 − x2
dy
:
dx
x 2 − 4 xy + y 3 = x
Supp #1, Pr 30
3. (8 pts) Find the equation of the tangent line to the curve y = ( x + x − 3) at x = 1 .
Supp #1, Pr 59
4. (24 pts) Evaluate the integrals:
2
a.
∫
c.
K pg 149, Pr 11
∫ x cos(2 x) dx
1 − x 2 x dx
∫ (3 + x
b.
2
2 2
) dx
K pg 149, Pr 25
Supp #2, Pr 6
5. (8 pts) Find the partial fraction decomposition of:
a.
3x
x ( x + 2)
K pg 459, Pr 39
6. (16 pts) Let
a.
α = 2 − 3i, β = 1 + 2i, γ = −2 + i . Find (in rectangular form):
α 2 + 2i β
b.
Supp #0, Pr 1a
7. (8 pts) Find all of the square roots of
Supp #0, Pr 2a
α
α
β −γ
Supp #0, Pr 1c
= 2 − 2i .